Abstract
Rhizospheric microbes help plants to acquire and assimilate nutrients, improve soil texture and modulate extracellular molecules. Rhizosphere bacteria regularly encounter a copious number of variables, such as temperature, pH, nutrients, pest resistance mechanisms, etc. The extracellular concentration of chemical messengers fabricated by plant growth promoting bacteria (PGPB) in a system is directly proportional to the bacterial population. To dwindle the use of chemically synthesised pesticides, plant growth-promoting rhizobacteria (PGPR) are new arsenals of imperishable agricultural practises for managing plant pathogens and resistance. This review aims to harness the rhizosphere milieu to raise climate smart crops. The PGPB mediated hormonal control of plant stress management pathway could be potentially modified for the benefit of plants. Nutrient solubilisation strengthens the rhizomicrobiome for phytoremediation and pathogen control. Quorum sensing as well as the role of enzymes and siderophores in rhizo-microbiome has been discussed. With advent of metagenomics, the understanding of soil microbiome ecology has acquired new dimensions and has enabled us to modify the microbiome for sustainable agriculture and enhanced productivity.
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Acknowledgements
Dr. Deepak Kumar is thankful to Institution of Eminence Seed Grant (Dev. No. 6031 (B), Banaras Hindu University, Varanasi for providing the financial support to the laboratory. DK also acknowledges Centre of Advanced study in Botany, Institute of Science, Banaras Hindu University, for providing necessary facilities and infrastructural support. The DK laboratory is funded by the Science and Engineering Research Board (SERB)-EMEQ grant (EEQ/2021/000593). VG extends his appreciation for the financial assistance granted to his research laboratory via the Institution of Eminence Seed Grant at Banaras Hindu University in Varanasi, India. Khushboo acknowledges DBT-RA program (fellowship) of Department of Biotechnology, Govt. of India.
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The work presented here was carried out in collaboration among all authors. Conceived and designed the article: DK; wrote the draft manuscript: MT, Khushboo, SS, PK, MY, RKV, AP, VY; and reviewed, edited and provided valuable input in the manuscript: SS, VY, NPN, VG and DK. All authors have read and approved the manuscript.
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Thakur, M., Khushboo, Shah, S. et al. Unlocking the Secrets of Rhizosphere Microbes: A New Dimension for Agriculture. Symbiosis 92, 305–322 (2024). https://doi.org/10.1007/s13199-024-00980-w
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DOI: https://doi.org/10.1007/s13199-024-00980-w